Tobacco pipe



F. G. SHULL March 17, 1931.

TOBACCO PIPE Filed Dec. 18. 1928 -W1ess Patented Mar. 17, 1931 FREDERICK G. SI-IULL, OF NEW HAVEN, CONNECTICUT TOBACCO PIPE Application filed December 18, 1928. Serial No. 326,870.

The present invention relates to tobacco pipes, and more particularly to pipes of this character having a trap or equivalent chamber formed in the stem.

The purpose one object of the present invention is to provide a pipe of this character which shall combine a trapping chamber designed to collect liquid present in the bore of the stem, and prevent the flow of such liquid to the mouthpiece, in conjunction with a removable stem portion which may be easily and tightly inserted within the trapping chamber.

With this and other obiects in view, the several features of the invention consist in certain novel features of construction, combinations and arrangements of parts, hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description.

The accompanying drawing illustrates a tobacco pipe, embodying the improved features of the invention, shown in longitudinal section.

As indicated more particularly in the drawing, the pipe comprises generally a bowl portion 14 having the usual chamber 16 formed therein and communicating with a bore 18 formed in an integral stem 20. Connected with the stem 20 is a condensing chamber and trap 22 which comprises essentially a thin metallic sleeve 24 having a reduced threaded end 26 adapted to be received in an internally threaded portion 28 formed in the end of the stem portion 20. The reduced threaded end 26 is provided with a bore 30 registering with the bore 18 and affording free communication between the interior 16 of the bowl and the chamber 22. The sleeve 2% forming the chamber 22 is conveniently surrounded *ith a coat 32 of rubber or similar material having the approximate diameter of the stem 20, and presenting a smooth, continuous surface with relation thereto. The end portion of the stem carrying the mouthpiece is preferably and conveniently separable from the sleeve 24 to permit detachment and insertion of this portion of the stem. To this end the stem comprises a portion 3 1 of rubber or equivalent material having the usual bite 36 formed at the end and a reduced portion 38 normally received loosely Within the metallic sleeve until the shoulder 10 upon the portion 3%- abuts against the end of the sleeve in the manner shown. lit is practically impossible in a construction of this character to provide a it b con the hardrrubber stem 3-1 and the met no sleeve 2 1 of such a character would be obtained. 1 have a ti overcome t vision of e sentially a e in a portion ano enl? stment, comprising esmetal thimble -12 havded within the stem 34:, 1 a i c 0 provide a shoulder 1-6 abutting against t of the stem, the thimble having a bore 48 which registers with the bore ithe stem, and affords free communication bewveen the end of the stem and the chamber 22. virtue of this adjusting thimble, I am one led to vary the diameter of the reduced portion of the stem 34 sufficiently to permit a tight fit in each individual case between the stem and the metallic sleeve 24. This may be conveniently accomplished by heating the stem, as for example, by dipping the stem in hot water sufficiently to soften the material slightly. Thereafter, by adjusting the thimble through the provision of the slot 18, a greater or less compression can be exerted upon the reduced portion of the stem, and the diameter correspondingly varied to the slight extent necessarv for a tight fit. /Vith this constructionthe necessary sealing fit betwen the stem and the condensate chamber is secured, and a satisfactory construction results. I

What is claimed is:

1. A tobacco pipe comprising a bowl portion having a hollow stem extending therefrom, a separable stem portion having an integral reduced connecting end, and means extending within the reduced end and adapted to modify the diameter thereof to insure a tight fit.

2. A tobacco pipe comprising a bowl portion having a hollow stem extending therefrom, a separable stem portion having an integral connecting end, a metallic sleeve interposed between the two stem portions to provide a trapping chamber, and means for modifying the size of the integral connecting end of the separable stem portion to insure a tight lit with the metallic sleeve.

8. A tobacco pipe comprising a bowl hav ing a hollow stem extending therefrom, a metallic sleeve having a reduced neck portion threaded in the stem and provided with an outer coat of rubber or equivalent material having l nproxiniatcly the diameter of the stem portion, and detachable stein portion havir in integral educed end designed to be i'ecci ed Within the metallic sleeve With a press fit.

4:. A tobacco pipe comprising a detachable em havi g an integral reduced end, an adin er received Within the end of arm and adjustable len ihwise thereof jutting member having a shoulder abntti g against the reduced end or" the stem 30 to modify the diameter thereof.

A tol acco pipe comprising a detachable rtion having' a bore extending thereind an integral reduced neck at the end, internal threads formed stem portion surrounding the bore lv beyond the reduced neck, and a nollow p threaded within the stem and havinga shoulder abutting against the end j 1-) reduced neck to modify the diameter :19 til1101l 2fi compression exerted longitudinally FREDERICK G. SHULL. 

